how i can make a rule that does not show 20,30.. 40's reverse because their reverse are like 03 and ...

Question

#include <iostream>
using namespace std;

int main() {

int s,n,a,i;
for(i=11;i<=99;i++)
{ n=i;
s=0;
cout<<n<<":";
while(n>0){

a=n%10;
s=s*10+a;
n=n/10;
}

cout<<s<<endl;

}
return 0;
}

Answer 1

"but the question is how we can make a rule that does not sho"

that doesn't ring me any bells

Answer 2

You mean, how to skip 20, 30 etc?
You can use if statement:
if(!(i%10)) continue;
Which is the same as "if (i%10==0)"

Answer 3

That's true Michał Doruch ,i mean that.